<template>
  <view class="my-settle-container">
    <!-- 全选 -->
    <label class="radio" @click="changeAllState">
      <radio class="#c00000" :checked="isFullCheck" /><text>全选</text>
    </label>
    
    <!-- 合计 -->
    <view class="amount-box">
      合计：<text class="amount">¥{{checkedGoodsAmount}}</text>
    </view>
    
    <!-- 结算按钮 -->
    <view class="btn-settle" @click="settlement">结算({{checkedCount}})</view>
  </view>
</template>

<script>
  import { mapGetters, mapMutations, mapState } from 'vuex'
  export default {
    name:"my-settle",
    data() {
      return {
        //倒计时的秒数，默认值为3秒
        seconds: 3,
        //定时器的 Id
        timer: null
      };
    },
    computed: {
      ...mapGetters('m_cart',['checkedCount','total','checkedGoodsAmount']),
      ...mapGetters('m_user',['addstr']),//映射地址
      ...mapState('m_user',['token']),//映射token
      ...mapState('m_cart',['cart']),
      isFullCheck(){//如果总数量等于已勾选的总数，就返回true
       return this.total === this.checkedCount
      }
    },
    methods: {
      ...mapMutations('m_cart',['updateAllGoodsState']),
      ...mapMutations('m-user',['updateRedirectInfo']),
      
      changeAllState(){
        // console.log(!this.isFullCheck)
        this.updateAllGoodsState(!this.isFullCheck)
      },
      //用户点击了结算按钮
      settlement(){
        if(!this.checkedCount) return uni.$showMsg('请选择要结算的商品！')
        if(!this.addstr) return uni.$showMsg('请选择收货地址！')
        // if(!this.token) return uni.$showMsg('请先登录！')
        if(!this.token) return this.delayNavigate()
        
        //调用方法
        this.payOrder()
      },
      
      //订单支付 
      async payOrder(){
        //1.创建订单
        //1.1 定义订单的参数对象
        const orderInfo = {
          // order_price: this.checkedGoodsAmount,
          order_price: 0.01,
          consignee_addr: this.addstr,
          goods: this.cart.filter(x => x.goods_state).map(x. => ({
            goods_id: x.goods_id,
            goods_number: x.goods_count,
            goods_price: x.goods_price
          }))
        }
        //1.2 发起请求，创建订单
        const {data: res} = await uni.$http.post('/api/public/v1/my/orders/create',orderInfo)
        if(res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
        
        //1.3 得到服务器响应的 "订单编号"
        const orderNumber = res.message.order_number
        // console.log(orderNumber)
        
        //2. 订单预支付
        //2.1 发起请求获取订单的支付信息
        const {data: res2} = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder',{order_number:orderNumber})
        
        //2.2 预付订单生成失败
        if(res2.meta.status !== 200) return uni.$showMsg('预付订单失败！')
        //2.3 得到订单支付相关的必要参数
        const payInfo = res2.message.pay
        // console.log(payInfo)
        
        //3. 发起微信支付
        //3.1 调用 uni.requestPayment() 发起微信支付
        const [err, succ] = await uni.requestPayment(payInfo)
        //3.2 未完成支付
        if(err) return uni.#showMsg('订单为支付')
        //3.3 完成了支付，进一步查询支付的结果
        const {data: res3} = await uni.$http.post('/api/public/v1/my/orders/chkOrder',{order_number: orderNumber})
        //3.4 检测到订单未支付
        if(res3.meta.status !== 200) return uni.$showMsg('订单未支付')
        //3.5 检测到订单支付完成了
        uni.$showToast({
          title: '订单支付完成！',
          icon: 'success'  //到此为止，点击结算按钮，即弹出二维码，即可进行付款
        })
      },
      
      //延时导航的 my 页面
      delayNavigate(){
        this.seconds = 3  //保证每次调用延时导航方法，都是从3秒倒计
        this.showTips(this.seconds)
        
        this.timer = setInterval(() => {
          this.seconds -- //自减
          
          if(this.seconds <= 0){
            clearInterval(this.timer)
            
            uni.switchTab({//3-2-1 秒， 跳转...
              url: '/pages/my/my',
              success: () => {//在成功回调里面
                this.updateRedirectInfo({//调用user.js的这个方法，传入一个对象，接收两个成员
                  openType: 'switchTab', //指定第一个成员为 switchTab
                  from: '/pages/cart/cart' //指定第二个成员为 /pages/cart/cart
                })
              }
            })
            return //为了防止提示消息再次弹出，需返回
          }
          this.showTips(this.seconds)
        },1000)
      },
      // 展示倒计时的提示信息
      showTips(n){
        uni.showToast({
          icon: 'none',
          title: '请登录后再结算,!' +n+ '秒之后自动调整到登录页面',
          mast: true,
          duration: 1500
        })
      }
    }
  }
</script>

<style lang="scss">
  .my-settle-container{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50px;
    background-color: white; //青色
    display: flex;
    justify-content: space-between;
    align-items: center;//纵向居中
    font-size: 14px;
    padding-left: 5px;
    
    .radio{
      display: flex;
      align-items: center;
      
    }
    .amount-box{
      .amount{
        color: #c00000;
        font-weight: bold;
      }
    }
    .btn-settle{
      background-color: #c00000;
      height: 50px;
      color: white;
      line-height: 50px;
      padding: 0 10px;
      min-width: 100px;
      text-align: center;//里面的文本居中
    }
  }
</style>
